sys/arch/arc/include/param.h

   1 /*      $NetBSD: param.h,v 1.24 2005/12/11 12:16:39 christos Exp $      */
   2 /*      $OpenBSD: param.h,v 1.9 1997/04/30 09:54:15 niklas Exp $ */
   3
   4 /*
   5  * Copyright (c) 1992, 1993
   6  *      The Regents of the University of California.  All rights reserved.
   7  *
   8  * This code is derived from software contributed to Berkeley by
   9  * the Systems Programming Group of the University of Utah Computer
  10  * Science Department and Ralph Campbell.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  * 3. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  34  * SUCH DAMAGE.
  35  *
  36  *      from: Utah Hdr: machparam.h 1.11 89/08/14
  37  *      from: @(#)param.h       8.1 (Berkeley) 6/10/93
  38  */
  39 /*
  40  * Copyright (c) 1988 University of Utah.
  41  *
  42  * This code is derived from software contributed to Berkeley by
  43  * the Systems Programming Group of the University of Utah Computer
  44  * Science Department and Ralph Campbell.
  45  *
  46  * Redistribution and use in source and binary forms, with or without
  47  * modification, are permitted provided that the following conditions
  48  * are met:
  49  * 1. Redistributions of source code must retain the above copyright
  50  *    notice, this list of conditions and the following disclaimer.
  51  * 2. Redistributions in binary form must reproduce the above copyright
  52  *    notice, this list of conditions and the following disclaimer in the
  53  *    documentation and/or other materials provided with the distribution.
  54  * 3. All advertising materials mentioning features or use of this software
  55  *    must display the following acknowledgement:
  56  *      This product includes software developed by the University of
  57  *      California, Berkeley and its contributors.
  58  * 4. Neither the name of the University nor the names of its contributors
  59  *    may be used to endorse or promote products derived from this software
  60  *    without specific prior written permission.
  61  *
  62  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  63  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  64  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  65  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  66  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  67  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  68  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  69  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  70  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  71  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  72  * SUCH DAMAGE.
  73  *
  74  *      from: Utah Hdr: machparam.h 1.11 89/08/14
  75  *      from: @(#)param.h       8.1 (Berkeley) 6/10/93
  76  */
  77
  78 #ifndef _ARC_PARAM_H_
  79 #define _ARC_PARAM_H_
  80
  81 /*
  82  * Machine-dependent constants (VM, etc) common across MIPS cpus
  83  */
  84 #include <mips/mips_param.h>
  85
  86 /*
  87  * Machine dependent constants for ARC BIOS MIPS machines:
  88  *      Acer Labs PICA_61
  89  *      Deskstation rPC44
  90  *      Deskstation Tyne
  91  *      Etc
  92  */
  93 #define _MACHINE_ARCH   mipsel
  94 #define MACHINE_ARCH    "mipsel"
  95 #define _MACHINE        arc
  96 #define MACHINE         "arc"
  97
  98 #define KERNBASE        0x80000000      /* start of kernel virtual */
  99 #define BTOPKERNBASE    ((u_long)KERNBASE >> PGSHIFT)
 100
 101 #define DEV_BSIZE       512
 102 #define DEV_BSHIFT      9               /* log2(DEV_BSIZE) */
 103 #define BLKDEV_IOSIZE   2048
 104 #define MAXPHYS         (64 * 1024)     /* max raw I/O transfer size */
 105
 106 #define SSIZE           1               /* initial stack size/NBPG */
 107 #define SINCR           1               /* increment of stack/NBPG */
 108
 109 #define UPAGES          2               /* pages of u-area */
 110 #if defined(_LOCORE) && defined(notyet)
 111 #define UADDR           0xffffffffffffc000      /* address of u */
 112 #else
 113 #define UADDR           0xffffc000      /* address of u */
 114 #endif
 115 #define USPACE          (UPAGES*NBPG)   /* size of u-area in bytes */
 116 #define UVPN            (UADDR>>PGSHIFT)/* virtual page number of u */
 117 #define KERNELSTACK     (UADDR+UPAGES*NBPG)     /* top of kernel stack */
 118
 119 /*
 120  * Constants related to network buffer management.
 121  * MCLBYTES must be no larger than NBPG (the software page size), and,
 122  * on machines that exchange pages of input or output buffers with mbuf
 123  * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
 124  * of the hardware page size.
 125  */
 126 #define MSIZE           256             /* size of an mbuf */
 127
 128 #ifndef MCLSHIFT
 129 #define MCLSHIFT        11              /* convert bytes to m_buf clusters */
 130                                         /* 2K cluster can hold Ether frame */
 131 #endif  /* MCLSHIFT */
 132
 133 #define MCLBYTES        (1 << MCLSHIFT) /* size of a m_buf cluster */
 134
 135 #ifndef NMBCLUSTERS
 136 #if defined(_KERNEL_OPT)
 137 #include "opt_gateway.h"
 138 #endif
 139
 140 #ifdef GATEWAY
 141 #define NMBCLUSTERS     2048            /* map size, max cluster allocation */
 142 #else
 143 #define NMBCLUSTERS     1024            /* map size, max cluster allocation */
 144 #endif
 145 #endif
 146
 147 /* bytes to disk blocks */
 148 #define btodb(x)        ((x) >> DEV_BSHIFT)
 149 #define dbtob(x)        ((x) << DEV_BSHIFT)
 150
 151 #ifdef _KERNEL
 152 #ifndef _LOCORE
 153
 154 extern int cpuspeed;
 155 void delay(unsigned int n);
 156
 157 #define DELAY(n)        delay(n)
 158
 159 #include <machine/intr.h>
 160
 161 #endif /* _LOCORE */
 162 #endif /* _KERNEL */
 163
 164 #endif /* _ARC_PARAM_H_ */